Photos: 'Big Bang Theory' cast

Raise your hand if you're excited for the return of "The Big Bang Theory!" season 8 kicks off on September 22, and things have changed for our favorite Pasadena physicists. Let's catch up with where the cast is at the start of Season 8.

Raise your hand if you're excited for the return of "The Big Bang Theory!" season 8 kicks off on September 22, and things have changed for our favorite Pasadena physicists. Let's catch up with where the cast is at the start of Season 8.